New Delhi: Former Prime Minister Manmohan Singh was 'aware of everything' in the process of allocating a coal block to Naveen Jindal group firm, ex-Jharkhand Chief Minister Madhu Koda told a special court today.

Koda, who sought summoning of Manmohan Singh as an accused, said if there was any conspiracy to allocate the Amarkonda Murgadangal coal block in Jharkhand to Jindal group firm, it could not have been without the knowledge of the then Prime Minister who was also the Coal Minister at that time.

"The Coal Minister (Singh) was aware of everything and if at all there was a conspiracy, as CBI says, it cannot be complete without the knowledge of the Coal Minister," Koda's counsel told Special CBI Judge Bharat Parashar.

The lawyer also argued that Singh cannot take the defence that he was kept in the dark in this case as he was aware of the entire process, which led to the allocation of the coal block to Jindal group firm.

He said that according to CBI, then Minister of State for Coal Dasari Narayan Rao, who is also an accused in the case, wanted the coal block to be allocated to Jindal group but 'actually the man behind this was the Prime Minister who approved it'.

Koda's counsel concluded his arguments on the plea after which senior public prosecutor V K Sharma said he would respond to it tomorrow. Koda, in his plea, has sought to summon Singh as an accused along with Anand Swaroop, the then Secretary (Energy), and Jai Shankar Tiwari, the then Secretary (Mines and Geology), contending that CBI's theory of conspiracy remains incomplete without the involvement of the then Prime Minister who was also holding the portfolio of Coal Ministry.